Merge pull request #50 from agavrelyuk/feature/README

Update README

README.md

@@ -0,0 +1,73 @@
+CFPropertyList implementation
+class to read, manipulate and write both XML and binary property list
+files (plist(5)) as defined by Apple. Have a look at CFPropertyList::List
+for more documentation.
+
+# Installation
+
+You could either use ruby gems and install it via
+
+```bash
+gem install CFPropertyList
+```
+
+or you could clone this repository and place it somewhere in your load path.
+
+Example:
+```ruby
+require 'cfpropertylist'
+```
+
+If you're using Rails, you can add it into your Gemfile
+
+```ruby
+gem 'CFPropertyList'
+```
+
+# Usage
+
+  ## create a arbitrary data structure of basic data types
+
+```ruby
+data = {
+  'name' => 'John Doe',
+  'missing' => true,
+  'last_seen' => Time.now,
+  'friends' => ['Jane Doe','Julian Doe'],
+  'likes' => {
+    'me' => false
+  }
+}
+```
+
+## create CFPropertyList::List object
+
+```ruby
+plist = CFPropertyList::List.new
+```
+
+## call CFPropertyList.guess() to create corresponding CFType values
+
+```ruby  
+plist.value = CFPropertyList.guess(data)
+```
+
+## write plist to file
+```ruby
+plist.save("example.plist", CFPropertyList::List::FORMAT_BINARY)
+```
+
+## … later, read it again
+```ruby  
+plist = CFPropertyList::List.new(:file => "example.plist")
+data = CFPropertyList.native_types(plist.value)
+```
+
+# Author and license
+
+**Author:**    Christian Kruse (mailto:cjk@wwwtech.de)
+
+**Copyright:** Copyright (c) 2010
+
+**License:**   MIT License
+